A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 2204 UTC on 18 December 2018

[ The Tracking News | ephemerides | cleared ]

Notes: The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both risk monitors also post a few special objects with impact solutions beyond 100 years. For the latest official risk assessments, and for explanations of terminology and methodology, see NASA/JPL Sentry and NEODyS CLOMON2.
0000NNN000

Object

Risk
Monitor
 A/CC  Noted 
 Time & Day 
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Latest Risk Assessments
2018 XW5JPL Sentry2204 Dec. 182026-2116393.81105e-08-4.25-4.700Computed at 13:36 Dec. 18th Pacific time based on 12 observations spanning 2.7798 days (2018-Dec-14.56157 to 2018-Dec-17.341322). Diameter approximately 0.570 km. from weighted mean H=18.87.
An assessment posting was noted by A/CC on 18 Dec.   -   References: MPEC 2018-Y27
2018 XV5JPL Sentry2204 Dec. 182037-2110163.62339e-08-4.01-4.280Computed at 13:29 Dec. 18th Pacific time based on 23 observations spanning 3.5616 days (2018-Dec-14.32034 to 2018-Dec-17.881952). Diameter approximately 0.912 km. from weighted mean H=17.85.
An assessment posting was noted by A/CC on 18 Dec.   -   References: MPEC 2018-Y26
2018 XN5NEODyS1720 Dec. 182048-2115311.44e-05-5.53-6.090Based on 12 optical observations (of which 0 are rejected as outliers) from 2018-12-15.310 to 2018-12-17.222.
JPL Sentry1730 Dec. 172065-2115141.47660679e-05-5.54-6.020Computed at 08:31 Dec. 17th Pacific time based on 12 observations spanning 1.9116 days (2018-Dec-15.30928 to 2018-Dec-17.22092). Diameter approximately 0.025 km. from weighted mean H=25.69.
Assessment postings were noted by A/CC on 17 Dec. & 18 Dec.   -   References: MPEC 2018-Y22
2018 XG5NEODyS1720 Dec. 182030-2118391.02e-06-3.60-3.83-Based on 20 optical observations (of which 0 are rejected as outliers) from 2018-12-13.395 to 2018-12-16.309.
JPL Sentry1730 Dec. 172030-2116331.0870907e-06-3.62-3.970Computed at 07:58 Dec. 17th Pacific time based on 20 observations spanning 2.9144 days (2018-Dec-13.39431 to 2018-Dec-16.30868). Diameter approximately 0.265 km. from weighted mean H=20.52.
Assessment postings were noted by A/CC on 17 Dec. & 18 Dec.   -   References: MPEC 2018-Y16
2018 XE5JPL Sentry1730 Dec. 172029-207921.0595e-09-5.39-5.570Computed at 08:27 Dec. 17th Pacific time based on 17 observations spanning 4.0067 days (2018-Dec-13.21052 to 2018-Dec-17.217264). Diameter approximately 0.620 km. from weighted mean H=18.69.
An assessment posting was noted by A/CC on 17 Dec.   -   References: MPEC 2018-Y23
2018 XR4NEODyS1740 Dec. 162062-208852.52e-06-6.52-6.710Based on 27 optical observations (of which 0 are rejected as outliers) from 2018-12-14.268 to 2018-12-15.258.
JPL Sentry2000 Dec. 152062-211453.590074e-06-6.36-6.560Computed at 11:33 Dec. 15th Pacific time based on 27 observations spanning .98982 days (2018-Dec-14.26688 to 2018-Dec-15.2567). Diameter approximately 0.015 km. from weighted mean H=26.80.
Assessment postings were noted by A/CC on 15 Dec. & 16 Dec.   -   References: MPEC 2018-X132
2018 XB4NEODyS1730 Dec. 152030-21182814.16e-05-3.91-4.55-Based on 19 optical observations (of which 0 are rejected as outliers) from 2018-12-13.344 to 2018-12-14.824.
JPL Sentry0600 Dec. 152030-21186114.42829738e-05-3.75-4.060Computed at 21:33 Dec. 14th Pacific time based on 19 observations spanning 1.4796 days (2018-Dec-13.34358 to 2018-Dec-14.823198). Diameter approximately 0.055 km. from weighted mean H=23.96.
Assessment postings were noted by A/CC on 15 Dec.   -   References: MPEC 2018-X119
2018 XY3NEODyS1730 Dec. 15208611.34e-11-8.36-8.360Based on 47 optical observations (of which 0 are rejected as outliers) from 2018-12-07.003 to 2018-12-14.546.
JPL Sentry0531 Dec. 152034-211378.783e-09-5.30-5.670Computed at 21:07 Dec. 14th Pacific time based on 47 observations spanning 7.5431 days (2018-Dec-07.0021 to 2018-Dec-14.54519). Diameter approximately 0.340 km. from weighted mean H=20.00.
Assessment postings were noted by A/CC on 15 Dec.   -   References: MPEC 2018-X116
2018 XX3JPL Sentry1730 Dec. 142088-211841.828773e-06-8.37-8.570Computed at 09:06 Dec. 14th Pacific time based on 20 observations spanning 1.0087 days (2018-Dec-13.30812 to 2018-Dec-14.31686). Diameter approximately 0.004 km. from weighted mean H=29.64.
NEODyS1730 Dec. 142086-211271.18e-06-8.55-8.620Based on 21 optical observations (of which 1 are rejected as outliers) from 2018-12-13.309 to 2018-12-14.318.
Assessment postings were noted by A/CC on 14 Dec.   -   References: MPEC 2018-X114
2018 XW3JPL Sentry1730 Dec. 142030-209643.7653e-07-6.76-6.880Computed at 09:01 Dec. 14th Pacific time based on 17 observations spanning 1.0291 days (2018-Dec-13.2296 to 2018-Dec-14.25868). Diameter approximately 0.019 km. from weighted mean H=26.29.
NEODyS1730 Dec. 142030-204469.92e-07-6.15-6.350Based on 17 optical observations (of which 0 are rejected as outliers) from 2018-12-13.230 to 2018-12-14.259.
Assessment postings were noted by A/CC on 14 Dec.   -   References: MPEC 2018-X113
2018 XG3NEODyS1730 Dec. 14211111.66e-07-7.74-7.740Based on 20 optical observations (of which 0 are rejected as outliers) from 2018-12-10.333 to 2018-12-12.871.
An assessment posting was noted by A/CC on 14 Dec.   -   References: MPEC 2018-X105
2018 XX2NEODyS1730 Dec. 142088-211793.67e-07-7.13-7.490Based on 22 optical observations (of which 0 are rejected as outliers) from 2018-12-10.539 to 2018-12-12.395.
JPL Sentry1801 Dec. 122109-210912.024e-07-7.41-7.410Computed at 09:30 Dec. 12th Pacific time based on 22 observations spanning 1.8563 days (2018-Dec-10.53786 to 2018-Dec-12.394209). Diameter approximately 0.022 km. from weighted mean H=25.96.
Assessment postings were noted by A/CC on 12 Dec. & 14 Dec.   -   References: MPEC 2018-X100
2018 XQ2NEODyS1730 Dec. 142053-21182167.41e-04-4.86-5.09-Based on 25 optical observations (of which 0 are rejected as outliers) from 2018-12-10.243 to 2018-12-13.360.
JPL Sentry1640 Dec. 132053-21181170.0008379188988-4.78-4.980Computed at 08:24 Dec. 13th Pacific time based on 25 observations spanning 3.1166 days (2018-Dec-10.2423 to 2018-Dec-13.35887). Diameter approximately 0.008 km. from weighted mean H=28.20.
Assessment postings were noted by A/CC on 12 Dec., 13 Dec. & 14 Dec.   -   References: MPEC 2018-X94 plus DOU 2018-X106
2018 XF2NEODyS1730 Dec. 142091-210434.04e-07-7.27-7.310Based on 60 optical observations (of which 2 are rejected as outliers) from 2018-12-10.269 to 2018-12-13.324.
JPL Sentry1640 Dec. 132053-210421.5146e-07-7.50-7.720Computed at 08:08 Dec. 13th Pacific time based on 59 observations spanning 3.0547 days (2018-Dec-10.26869 to 2018-Dec-13.32335). Diameter approximately 0.019 km. from weighted mean H=26.23.
Assessment postings were noted by A/CC on 12 Dec., 13 Dec. & 14 Dec.   -   References: MPEC 2018-X82 plus DOU 2018-X106
2018 XANEODyS1730 Dec. 14209921.45e-08-7.33-7.510Based on 116 optical observations (of which 0 are rejected as outliers) from 2018-12-01.348 to 2018-12-12.282.
JPL Sentry1640 Dec. 132099-209924.243e-08-6.85-7.020Computed at 07:57 Dec. 13th Pacific time based on 116 observations spanning 10.935 days (2018-Dec-01.34686 to 2018-Dec-12.28162). Diameter approximately 0.064 km. from weighted mean H=23.62.
Assessment postings were noted by A/CC on 2 Dec., 3 Dec., 4 Dec., 5 Dec., 6 Dec., 7 Dec., 8 Dec., 9 Dec., 10 Dec., 11 Dec., 12 Dec., 13 Dec. & 14 Dec.   -   References: MPEC 2018-X22 plus DOUs 2018-X24, 2018-X27, 2018-X42, 2018-X48, 2018-X53, 2018-X61, 2018-X76, 2018-X85 & 2018-X106
2018 WA3NEODyS1730 Dec. 142055-206021.09e-05-6.07-6.080Based on 28 optical observations (of which 0 are rejected as outliers) from 2018-11-29.262 to 2018-12-08.433.
JPL Sentry1640 Dec. 132055-206022.61619e-06-6.67-6.680Computed at 08:14 Dec. 13th Pacific time based on 28 observations spanning 9.1706 days (2018-Nov-29.26148 to 2018-Dec-08.432077). Diameter approximately 0.009 km. from weighted mean H=27.83.
Assessment postings were noted by A/CC on 4 Dec., 7 Dec., 13 Dec. & 14 Dec.   -   References: MPEC 2018-X33 plus DOUs 2018-X52 & 2018-X106
2018 WG2NEODyS1630 Dec. 12077-211891.45e-06-8.67-8.88-Based on 18 optical observations (of which 1 are rejected as outliers) from 2018-11-29.240 to 2018-11-30.734.
JPL Sentry0600 Dec. 12078-210321.2327e-06-8.74-8.820Computed at 21:38 Nov. 30th Pacific time based on 17 observations spanning 1.4827 days (2018-Nov-29.25024 to 2018-Nov-30.732895). Diameter approximately 0.003 km. from weighted mean H=30.13.
Assessment postings were noted by A/CC on 1 Dec.   -   References: MPEC 2018-X09
2018 WZ1NEODyS1900 Dec. 9203411.23e-08-9.47-9.470Based on 21 optical observations (of which 0 are rejected as outliers) from 2018-11-28.369 to 2018-12-06.416.
JPL Sentry1610 Dec. 8R E M O V E DRisk listing removed at 1519 UTC Dec. 8th
Assessment postings were noted by A/CC on 1 Dec., 8 Dec. & 9 Dec.   -   References: MPEC 2018-W85 plus DOU 2018-X53
2018 WH1NEODyS1730 Dec. 142067-2117272.88e-05-6.59-7.380Based on 62 optical observations (of which 1 are rejected as outliers) from 2018-11-27.259 to 2018-12-09.276.
JPL Sentry1610 Dec. 112076-2111151.016944e-05-7.10-7.860Computed at 07:46 Dec. 11th Pacific time based on 61 observations spanning 12.017 days (2018-Nov-27.25828 to 2018-Dec-09.275244). Diameter approximately 0.007 km. from weighted mean H=28.48.
Assessment postings were noted by A/CC on 1 Dec., 2 Dec., 3 Dec., 4 Dec., 7 Dec., 9 Dec., 10 Dec., 11 Dec. & 14 Dec.   -   References: MPEC 2018-W67 plus DOUs 2018-W74, 2018-X11, 2018-X24, 2018-X27, 2018-X61 & 2018-X76
2018 WE1NEODyS1730 Dec. 142063-2096123.1e-06-6.00-6.320Based on 78 optical observations (of which 2 are rejected as outliers) from 2018-11-26.470 to 2018-12-09.482.
JPL Sentry1610 Dec. 112063-210252.3593e-06-6.10-6.460Computed at 07:41 Dec. 11th Pacific time based on 76 observations spanning 13.012 days (2018-Nov-26.46885 to 2018-Dec-09.481066). Diameter approximately 0.022 km. from weighted mean H=25.97.
Assessment postings were noted by A/CC on 3 Dec., 4 Dec., 5 Dec., 7 Dec., 9 Dec., 10 Dec., 11 Dec. & 14 Dec.   -   References: MPEC 2018-W65 plus DOUs 2018-W74, 2018-X24, 2018-X27, 2018-X42, 2018-X61 & 2018-X76
2018 WJNEODyS1637 Dec. 72045-207587.92e-07-7.00-7.370Based on 81 optical observations (of which 0 are rejected as outliers) from 2018-11-17.268 to 2018-11-19.910.
JPL Sentry1700 Dec. 62045-207241.19994e-06-6.80-7.160Computed at 07:39 Dec. 6th Pacific time based on 81 observations spanning 2.6420 days (2018-Nov-17.26735 to 2018-Nov-19.909366). Diameter approximately 0.010 km. from weighted mean H=27.65.
Assessment postings were noted by A/CC on 1 Dec., 2 Dec., 6 Dec. & 7 Dec.   -   References: MPEC 2018-W21 plus DOUs 2018-W27, 2018-W41, 2018-W52, 2018-X11 & 2018-X48
2018 VO9NEODyS1730 Dec. 142106-211759.93e-07-7.40-7.650Based on 44 optical observations (of which 0 are rejected as outliers) from 2018-11-09.270 to 2018-12-10.083.
JPL Sentry1610 Dec. 112106-211034.9329e-06-6.70-7.050Computed at 07:35 Dec. 11th Pacific time based on 44 observations spanning 30.812 days (2018-Nov-09.26967 to 2018-Dec-10.08196). Diameter approximately 0.014 km. from weighted mean H=26.86.
Assessment postings were noted by A/CC on 3 Dec., 4 Dec., 7 Dec., 9 Dec., 10 Dec., 11 Dec. & 14 Dec.   -   References: DOUs 2018-W53, 2018-W58, 2018-W69, 2018-W74, 2018-X24, 2018-X27, 2018-X61, 2018-X68 & 2018-X76
2018 VCNEODyS1700 Dec. 102109-2118142.32e-05-5.75-6.05-Based on 138 optical observations (of which 0 are rejected as outliers) from 2018-11-01.250 to 2018-12-07.258.
JPL Sentry1900 Dec. 92109-211551.18173e-05-6.02-6.160Computed at 07:34 Dec. 9th Pacific time based on 138 observations spanning 36.008 days (2018-Nov-01.24873 to 2018-Dec-07.257089). Diameter approximately 0.019 km. from weighted mean H=26.29.
Assessment postings were noted by A/CC on 1 Dec., 9 Dec. & 10 Dec.   -   References: DOUs 2018-W10, 2018-W27, 2018-W69, 2018-W86 & 2018-X61
2018 TP5NEODyS1637 Dec. 72074-2113591.8e-05-5.27-5.930Based on 38 optical observations (of which 0 are rejected as outliers) from 2018-10-10.316 to 2018-12-03.051.
JPL Sentry1710 Dec. 42074-2105251.906981e-05-5.23-5.840Computed at 07:44 Dec. 4th Pacific time based on 38 observations spanning 53.735 days (2018-Oct-10.3155 to 2018-Dec-03.050513). Diameter approximately 0.025 km. from weighted mean H=25.66.
Assessment postings were noted by A/CC on 4 Dec. & 7 Dec.   -   References: DOU 2018-X27
2016 JT38NEODyS1637 Dec. 72078-210342.35e-07-4.32-4.680Based on 18 optical observations (of which 0 are rejected as outliers) from 2016-04-26.315 to 2016-05-05.307.
JPL Sentry1700 Dec. 62103-210311.370e-07-4.61-4.610Computed at 07:29 Dec. 6th Pacific time based on 18 observations spanning 8.9923 days (2016-Apr-26.3141 to 2016-May-05.30645). Diameter approximately 0.320 km. from weighted mean H=20.13.
Assessment postings were noted by A/CC on 1 Dec., 2 Dec., 6 Dec. & 7 Dec.   -   References: DOUs 2018-X15 & 2018-X48
2014 JT79JPL Sentry1730 Dec. 172018-211611321.8690016e-06-6.29-7.510Computed at 19:19 April 6th of 2017 Pacific time based on 11 observations spanning 2.8075 days (2014-May-02.40649 to 2014-May-05.21401). Diameter approximately 0.013 km. from weighted mean H=27.12.
Assessment postings were noted by A/CC on 15 Dec. & 17 Dec.   -   References: no recent MPECs
2010 XCJPL Sentry1700 Dec. 122019-21113282.9753466e-06-7.32-7.910Computed at 07:23 April 7th of 2017 Pacific time based on 8 observations spanning .05836 days (2010-Dec-01.30659 to 2010-Dec-01.36495). Diameter approximately 0.005 km. from weighted mean H=29.11.
An assessment posting was noted by A/CC on 12 Dec.   -   References: no recent MPECs
2010 WW8JPL Sentry0531 Dec. 152019-2112831.435612e-07-7.04-7.510Computed at 11:07 April 9th of 2017 Pacific time based on 12 observations spanning .06622 days (2010-Nov-30.37333 to 2010-Nov-30.43955). Diameter approximately 0.018 km. from weighted mean H=26.39.
An assessment posting was noted by A/CC on 15 Dec.   -   References: no recent MPECs
2005 TM173JPL Sentry1910 Dec. 162018-21161519.432661e-07-5.41-6.270Computed at 08:06 April 8th of 2017 Pacific time based on 6 observations spanning 1.9467 days (2005-Oct-09.20072 to 2005-Oct-11.14743). Diameter approximately 0.051 km. from weighted mean H=24.12.
NEODyS1730 Dec. 142018-2112924.22e-07-5.87-6.670Based on 6 optical observations (of which 0 are rejected as outliers) from 2005-10-09.201 to 2005-10-11.148.
Assessment postings were noted by A/CC on 14 Dec. & 16 Dec.   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 WA2JPL Sentry1710 Dec. 4R E M O V E DRisk listing removed at 1601 UTC Dec. 4th
NEODyS1710 Dec. 4R E M O V E D
Assessment postings were noted by A/CC on 1 Dec. & 4 Dec.   -   References: MPEC 2018-X02 plus DOUs 2018-X27, 2018-X61, 2018-X68, 2018-X76, 2018-X85, 2018-X106 & 2018-X126
2018 WV1NEODyS1637 Dec. 7R E M O V E D
JPL Sentry2003 Dec. 3R E M O V E DRisk listing removed at 1936 UTC Dec. 3rd
Assessment postings were noted by A/CC on 1 Dec., 2 Dec., 3 Dec. & 7 Dec.   -   References: MPEC 2018-W81 plus DOUs 2018-X11, 2018-X24, 2018-X27, 2018-X42, 2018-X48, 2018-X52, 2018-X61 & 2018-X106
2018 WR1JPL Sentry1700 Dec. 2R E M O V E DRisk listing removed at 1510 UTC Dec. 2nd
NEODyS1700 Dec. 2R E M O V E D
Assessment postings were noted by A/CC on 1 Dec. & 2 Dec.   -   References: MPEC 2018-W80 plus DOUs 2018-X15, 2018-X27, 2018-X48, 2018-X53, 2018-X76, 2018-X85, 2018-Y12 & 2018-Y13
2018 WSNEODyS1700 Dec. 2R E M O V E D
An assessment posting was noted by A/CC on 2 Dec.   -   References: MPEC 2018-W38 plus DOUs 2018-W74 & 2018-X11
2018 WRNEODyS1610 Dec. 11R E M O V E D
Assessment postings were noted by A/CC on 10 Dec. & 11 Dec.   -   References: MPEC 2018-W37 plus DOUs 2018-X61 & 2018-X76
2018 WPNEODyS1730 Dec. 3R E M O V E D
An assessment posting was noted by A/CC on 3 Dec.   -   References: MPEC 2018-W35 plus DOUs 2018-W41, 2018-W53, 2018-W58, 2018-W69, 2018-W74, 2018-X24, 2018-X27, 2018-X61 & 2018-X107
2018 VO6NEODyS1700 Dec. 12R E M O V E D
Assessment postings were noted by A/CC on 9 Dec. & 12 Dec.   -   References: DOUs 2018-W10, 2018-W17, 2018-W27, 2018-W69, 2018-W74, 2018-X53 & 2018-X85
2017 RH16NEODyS1700 Dec. 2R E M O V E D
JPL Sentry0700 Dec. 1R E M O V E DRisk listing removed at 0619 UTC Dec. 1st
Assessment postings were noted by A/CC on 1 Dec. & 2 Dec.   -   References: MPEC 2018-X01
2016 PO66NEODyS1700 Dec. 10R E M O V E D
An assessment posting was noted by A/CC on 10 Dec.   -   References: no recent MPECs
2014 HN199JPL Sentry1700 Dec. 12R E M O V E DRisk listing removed at 1530 UTC Dec. 12th
An assessment posting was noted by A/CC on 12 Dec.   -   References: DOU 2018-X85

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

For a list of risk-rated objects currently under observation, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" for more information.


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